Solving/interpreting linear inequalities in one variable

A number n is less than or equal to - 7 or greater than 12

• $none\ of\ these\$

• $n\ \le\ -\ 7\ OR\ n\ >\ 12\$

• $-\ 7\ <\ n\ <\ 12\$

• $n\ =\ -7\ AND\ n\ =\ 12\$

Solve for x:
10 < 3x + 19

• x < 3
• x > 3
• x < -3
• x > -3

Mrs. Flowers always has a minimum of three thousand dollars in her savings account.

• $x<3000$
  

• $x\le3000$

• $x>3000$
  

• $x\ge3000$

The solution to an inequality shows__________.

• only  1 solution
• only 2 solutions
• a range of solutions
• only positive solutions

Solve the compound inequality for x:


 $-14<7x<42$ 

•  $-2<x<6$ 

•  $-2>x>6$ 

•  $2<x<6$ 

•  $-2<x<-6$ 

You need to save no less that $600

• s ≤ 600

• s < 600

• s ≥ 600

• s > 600

Solve this one...

Winter boots are rated for use when temperatures range between negative 40 degrees and 15 degrees. Which inequality that shows this.

• $-\ 40\ \le\ x\ \le\ 15\$

• $-\ 40\ \ge\ x\ \ge\ 15\$

• $40\ \le\ x\ \le\ 15\$

• $x\ \le\ -\ 40\ OR\ x\ \ge\ 15\$

A maximum ceiling height of 18 feet was required in the new buildings.

• c ≤ 18
• c ≥ 18
• c < 18
• c > 18

Solve the inequality.